Closed book
01
كتاب مغلق, غموض
someone or something one knows very little or nothing about
Idiom
Informal
أمثلة
The reclusive scientist was a closed book to his colleagues – he rarely interacted with them and never shared his work.
كان العالم المنعزل كتابًا مغلقًا لزملائه – نادرًا ما كان يتفاعل معهم ولم يشارك عمله أبدًا.
